20156730160

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{401}}^1\times {\mathrm{12823}}^1$

素因数の和:13251

約数の個数: 120

約数和(自身を含む): 54655939296

約数和(自身を除く): 34499209136

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 401, 490, 560, 784, 802, 980, 1604, 1960, 2005, 2807, 3208, 3920, 4010, 5614, 6416, 8020, 11228, 12823, 14035, 16040, 19649, 22456, 25646, 28070, 32080, 39298, 44912, 51292, 56140, 64115, 78596, 89761, 98245, 102584, 112280, 128230, 157192, 179522, 196490, 205168, 224560, 256460, 314384, 359044, 392980, 448805, 512920, 628327, 718088, 785960, 897610, 1025840, 1256654, 1436176, 1571920, 1795220, 2513308, 3141635, 3590440, 5026616, 5142023, 6283270, 7180880, 10053232, 10284046, 12566540, 20568092, 25133080, 25710115, 35994161, 41136184, 50266160, 51420230, 71988322, 82272368, 102840460, 143976644, 179970805, 205680920, 251959127, 287953288, 359941610, 411361840, 503918254, 575906576, 719883220, 1007836508, 1259795635, 1439766440, 2015673016, 2519591270, 2879532880, 4031346032, 5039182540, 10078365080, 20156730160]

約数ペア:

[(1, 20156730160), (2, 10078365080), (4, 5039182540), (5, 4031346032), (7, 2879532880), (8, 2519591270), (10, 2015673016), (14, 1439766440), (16, 1259795635), (20, 1007836508), (28, 719883220), (35, 575906576), (40, 503918254), (49, 411361840), (56, 359941610), (70, 287953288), (80, 251959127), (98, 205680920), (112, 179970805), (140, 143976644), (196, 102840460), (245, 82272368), (280, 71988322), (392, 51420230), (401, 50266160), (490, 41136184), (560, 35994161), (784, 25710115), (802, 25133080), (980, 20568092), (1604, 12566540), (1960, 10284046), (2005, 10053232), (2807, 7180880), (3208, 6283270), (3920, 5142023), (4010, 5026616), (5614, 3590440), (6416, 3141635), (8020, 2513308), (11228, 1795220), (12823, 1571920), (14035, 1436176), (16040, 1256654), (19649, 1025840), (22456, 897610), (25646, 785960), (28070, 718088), (32080, 628327), (39298, 512920), (44912, 448805), (51292, 392980), (56140, 359044), (64115, 314384), (78596, 256460), (89761, 224560), (98245, 205168), (102584, 196490), (112280, 179522), (128230, 157192)]